Corynoneura kibunelata Sasa

Fu, Yue, Saether, Ole A. & Wang, Xinhua, 2009, Corynoneura Winnertz from East Asia, with a systematic review of the genus (Diptera: Chironomidae: Orthocladiinae), Zootaxa 2287, pp. 1-44 : 15

Corynoneura kibunelata Sasa

( Figs 8 A–C)

Corynoneura kibunelata Sasa, 1989: 61 .

Material examined: JAPAN: Honshu, Kyoto Prefecture, Kibune River, sweep net, male holotype (No. 166: 61), 11.x.1988, M. Sasa.

Diagnostic characters. The species can be separated from other members of the genus by having an antenna with 10 flagellomeres; AR 0.31; superior volsella (not clear in the available material) probably fused with the gonocoxite; inferior volsella broad and with a small prominent part; sternapodeme inverted Ushaped; and gonostylus medially expanded.

Additional description and corrections. The holotype possesses 10 flagellomeres and an AR of 0.31, while the original description by Sasa (1989) mentions antenna with 9 flagellomeres and an AR of 0.43–0.56. Some additional characters should be added: Tentorium 125 µm long, 23 µm wide. Posterior margin of tergite IX almost straight. Sternapodeme inverted U-shaped, coxapodeme 38 µm long, small attachment point with phallapodeme placed in caudal position of sternapodeme and caudally directed; phallapodeme short, weakly curved, not extending beyond margin of tergite IX, 35 µm long. Gonocoxite 68 µm long, with 2 long setae apically. Gonostylus 35 µm long; megaseta 5 µm long. HR 1.9, HV 3.5. The wing and the hypopygium of the holotype are redrawn ( Figs 8 A–C).

Distribution. Japan.

Figures

FIGURE 8. Corynoneura kibunelata Sasa, 1989, male. A. Wing. B. Hypopygium, dorsal view. C. Hypopygium, ventral